Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 8 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/20/2014   10:22:36   (  -0.28,-135.41) (  -1.01,-132.25)  360.96                80
 08/21/2014   22:41:54   (   0.29,-135.40) (  -0.22,-137.55)  245.05                80
 08/22/2014   22:25:52   (   0.29,-135.39) (   0.81,-133.02)  269.28                80
 08/24/2014   10:45:03   (  -0.29,-135.35) (   0.34,-138.30)  336.03                80
 08/25/2014   10:28:59   (  -0.29,-135.33) (  -0.62,-133.77)  178.04                80
 08/26/2014   22:48:19   (   0.29,-135.32) (  -0.55,-139.08)  428.75                80
 08/27/2014   22:32:16   (   0.29,-135.29) (   0.48,-134.55)   85.04                80
 08/30/2014   10:35:24   (  -0.30,-135.22) (  -0.30,-135.30)    8.11                80
 09/01/2014   22:36:00   (   0.30,-135.16) (   0.10,-136.07)  103.31                80